/* * Copyright (c) 2010 Vojtech Horky * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * - Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * - Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * - The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ /** @addtogroup usbinfo * @{ */ /** * @file * Descriptor tree dump. */ #include <stdio.h> #include <stdlib.h> #include <errno.h> #include <str_error.h> #include <stdbool.h> #include <usb/usb.h> #include <usb/descriptor.h> #include <usb/debug.h> #include <usb/classes/classes.h> #include "usbinfo.h" #include <usb/dev/dp.h> static void browse_descriptor_tree_internal(usb_dp_parser_t *parser, usb_dp_parser_data_t *data, const uint8_t *root, size_t depth, dump_descriptor_in_tree_t callback, void *arg) { if (root == NULL) { return; } callback(root, depth, arg); const uint8_t *child = usb_dp_get_nested_descriptor(parser, data, root); do { browse_descriptor_tree_internal(parser, data, child, depth + 1, callback, arg); child = usb_dp_get_sibling_descriptor(parser, data, root, child); } while (child != NULL); } void browse_descriptor_tree(uint8_t *descriptors, size_t descriptors_size, usb_dp_descriptor_nesting_t *descriptor_nesting, dump_descriptor_in_tree_t callback, size_t initial_depth, void *arg) { usb_dp_parser_data_t data = { .data = descriptors, .size = descriptors_size, .arg = NULL }; usb_dp_parser_t parser = { .nesting = descriptor_nesting }; browse_descriptor_tree_internal(&parser, &data, descriptors, initial_depth, callback, arg); } /** @} */